mode mode (aka LFM mode) is where this application is set up to obtain all of your track plays from your account.

There is no expectation that you use Sonos equipment for this mode.

The other mode is SPY mode, which is where you get your non-Sonos plays from, but you get your Sonos plays directly from your Sonos zones themselves.

This section of the User Guide discusses LFM mode only. See here for a comparison of the two modes.

The install procedure initialises AlbumPlays into LFM mode.